Jim I didn't mean to hijack your thread. This is an answer to the question Dennis asked:
The cone is not a problem the block that the lever is pinned to is. TC
Looks to me like the block could easily be soldered onto the cone.
Dennis
I have tried that, after getting the cone set up with sinks, I had trouble getting the two surfaces to meet up evenly. I tried it using a "U" shaped piece with a fat bottom rather than a sold piece. also used tin instead of Brass. I may take another shot at it down the road when I get some time to play around with it.. In theory it should work but we know how that goes.
Tim
PS: In this game to me nothing is easily done, unless it is losing something in the shop. TC
Pic of the cone forming jig and pattern FWIW: